CVE-2026-41731

A flaw was found in the spring-kafka component. A remote attacker, by supplying crafted header values, could exploit a vulnerability in JsonKafkaHeaderMapper and DefaultKafkaHeaderMapper that incorrectly matched type headers against trusted packages. This issue, combined with Jackson's default be...

In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization

JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserialization, a producer could supply crafted...

CVE-2026-41732 In Spring for Apache Pulsar, overly broad trusted-package matching in header mapper exposes JDK classes to deserialization

JsonPulsarHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Additionally, an empty trusted-packages configuration fell back to trusting all packages rather than applying a safe default...

CVE-2026-41732 In Spring for Apache Pulsar, overly broad trusted-package matching in header mapper exposes JDK classes to deserialization

JsonPulsarHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Additionally, an empty trusted-packages configuration fell back to trusting all packages rather than applying a safe default...

CVE-2026-41732

CVE-2026-41732 affects Spring for Apache Pulsar due to JsonPulsarHeaderMapper using a prefix-based check on trusted packages, causing trust to cascade to subpackages. An empty trusted-packages config can default to trusting all packages. This exposes potential deserialization risk by allowing acc...